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7,102 Results Found

  • Article
  • Open Access
27 Citations
4,867 Views
21 Pages

28 May 2018

The most commonly used features in unsupervised change detection are spectral characteristics. Traditional methods describe the degree of the change between two pixels by quantifying the difference in spectral values or spectral shapes (spectral curv...

  • Article
  • Open Access
3 Citations
1,638 Views
36 Pages

5 April 2025

This paper analyzes the current state of water quality detection equipment and, based on the demand for portable water quality detection systems that are on-site, rapid, accurate, cost-effective, and capable of multi-parameter measurements using spec...

(This article belongs to the Section Environmental Sensing)
  • Article
  • Open Access
11 Citations
3,509 Views
18 Pages

Spectral–Spatial Feature Fusion for Hyperspectral Anomaly Detection

  • Shaocong Liu,
  • Zhen Li,
  • Guangyuan Wang,
  • Xianfei Qiu,
  • Tinghao Liu,
  • Jing Cao and
  • Donghui Zhang

3 March 2024

Hyperspectral anomaly detection is used to recognize unusual patterns or anomalies in hyperspectral data. Currently, many spectral–spatial detection methods have been proposed with a cascaded manner; however, they often neglect the complementar...

(This article belongs to the Section Remote Sensors)
  • Article
  • Open Access
5 Citations
3,715 Views
11 Pages

Pixelated Filter Array for On-Chip Polarized Spectral Detection

  • Yuechen Liu,
  • Chao Feng,
  • Siyu Dong,
  • Jingyuan Zhu,
  • Zhanshan Wang and
  • Xinbin Cheng

23 September 2023

On-chip multi-dimensional detection systems integrating pixelated polarization and spectral filter arrays are the latest trend in optical detection instruments, showing broad application potential for diagnostic medical imaging and remote sensing. Ho...

(This article belongs to the Special Issue Functional Nanomaterials for Sensing and Detection (2nd Edition))
  • Article
  • Open Access
583 Views
27 Pages

Spectral Multi-Representation Fusion for Audio Deepfake Detection

  • Dora Ballesteros,
  • Daniel Suarez and
  • Cesar Pachon

5 July 2026

Audio deepfake detection systems often achieve excellent internal validation performance but fail to generalize under real-world inference conditions involving synthetic speech generated with previously unseen AI tools. To address this limitation, th...

(This article belongs to the Special Issue Machine Learning Algorithms for Signal Processing)
  • Article
  • Open Access
1,379 Views
17 Pages

Full-Spectrum LED-Driven Underwater Spectral Detection System and Its Applications

  • Yunfei Li,
  • Jun Wei,
  • Shaohua Cheng,
  • Tao Yu,
  • Hong Zhao,
  • Guancheng Li and
  • Fuhong Cai

Spectral detection technology offers non-destructive, in situ, and high-speed capabilities, making it widely applicable for detecting biological and chemical samples and quantifying their concentrations. Water resources, essential to life on Earth, a...

(This article belongs to the Special Issue Spectroscopic Techniques for Chemical Analysis)
  • Article
  • Open Access
85 Citations
8,455 Views
17 Pages

24 January 2019

Change detection is one of the most important applications in the remote sensing domain. More and more attention is focused on deep neural network based change detection methods. However, many deep neural networks based methods did not take both the...

(This article belongs to the Special Issue Hyperspectral Imagery Intelligent Processing for Coastal Environmental Studies)
  • Article
  • Open Access
7 Citations
2,860 Views
15 Pages

Application of Spectral Entropy in Haul Truck Joint Damage Detection

  • Paweł Stefaniak,
  • Wioletta Koperska,
  • Artur Skoczylas and
  • Maria Stachowiak

28 September 2022

Early detection of machine failures is often beneficial, both financially and in terms of worker safety. The article presents the problem of frequently damaged joints in haul trucks, which are a real threat to the health and life of drivers. It was d...

(This article belongs to the Special Issue Sensors, Robotics and Networks in Mining)
  • Article
  • Open Access
15 Citations
5,009 Views
20 Pages

15 July 2023

Deep-Learning-based (DL-based) approaches have achieved remarkable performance in hyperspectral image (HSI) change detection (CD). Convolutional Neural Networks (CNNs) are often employed to capture fine spatial features, but they do not effectively e...

(This article belongs to the Special Issue Advances in Hyperspectral Data Exploitation II)
  • Article
  • Open Access
1 Citations
786 Views
24 Pages

3 March 2026

Hyperspectral sensors provide high spectral resolution, enabling accurate material discrimination and effective target detection. However, their practical use is constrained by limited spatial resolution and high acquisition costs. This paper propose...

(This article belongs to the Special Issue Deep Learning-Based Small-Target Detection in Remote Sensing)
  • Article
  • Open Access
14 Citations
5,362 Views
22 Pages

Hyperspectral Object Detection Based on Spatial–Spectral Fusion and Visual Mamba

  • Wenjun Li,
  • Fuqiang Yuan,
  • Hongkun Zhang,
  • Zhiwen Lv and
  • Beiqi Wu

29 November 2024

Hyperspectral object-detection algorithms based on deep learning have been receiving increasing attention due to their ability to operate without relying on prior spectral information about the target and their strong real-time inference performance....

(This article belongs to the Special Issue Advances in Hyperspectral Remote Sensing Image Processing: 2nd Edition)
  • Communication
  • Open Access
1 Citations
2,368 Views
11 Pages

22 September 2023

The infrared spectral radiance of O2 is of great significance for space-based infrared detection. In this work, based on the demand for near-infrared spectral radiance of O2 limb detection, a method of spectral radiance calculation coupled with an at...

(This article belongs to the Section Atmospheric Remote Sensing)
  • Article
  • Open Access
1 Citations
511 Views
20 Pages

26 February 2026

Cloud detection is an important procedure for the processing of remote sensing images. A cloud detection scheme driven by the spectral and the temporal features is presented in this paper, where an unsupervised hierarchy clustering approach is propos...

  • Article
  • Open Access
6 Citations
2,024 Views
14 Pages

The Application of Spectral Entropy to P-Wave Detection in Continuous Seismogram Analysis

  • Alisher Skabylov,
  • Aldiyar Agishev,
  • Dauren Zhexebay,
  • Margulan Ibraimov,
  • Serik Khokhlov and
  • Alua Maksutova

7 August 2025

This work aims to develop approaches to processing and interpreting spectral entropy outcomes in the context of seismic data, as well as to establish a methodological foundation for subsequent integration into practical monitoring solutions. The obje...

(This article belongs to the Section Applied Physics General)
  • Article
  • Open Access
27 Citations
5,059 Views
15 Pages

On the Detection of Spectral Emissions of Iron Oxides in Combustion Experiments of Pyrite Concentrates

  • Carlos Toro,
  • Sergio Torres,
  • Víctor Parra,
  • Rodrigo Fuentes,
  • Rosario Castillo,
  • Walter Díaz,
  • Gonzalo Reyes,
  • Eduardo Balladares and
  • Roberto Parra

27 February 2020

In this paper, we report on the spectral detection of wustite, Fe(II) oxide (FeO), and magnetite, Fe(II, III) oxide (Fe3O4), molecular emissions during the combustion of pyrite (FeS2), in a laboratory-scale furnace operating at high temperatures. The...

(This article belongs to the Special Issue Advanced Sensors and Signal Processing of Sensor Data: Recent Advances and Applications)
  • Article
  • Open Access
5 Citations
3,786 Views
21 Pages

30 August 2024

In the traditional method for hyperspectral anomaly detection, spectral feature mapping is used to map hyperspectral data to a high-level feature space to make features more easily distinguishable between different features. However, the uncertainty...

(This article belongs to the Special Issue Advanced Optical Sensors Based on Machine Learning)
  • Article
  • Open Access
16 Citations
7,393 Views
11 Pages

Spectral Analysis of Acceleration Data for Detection of Generalized Tonic-Clonic Seizures

  • Hyo Sung Joo,
  • Su-Hyun Han,
  • Jongshill Lee,
  • Dong Pyo Jang,
  • Joong Koo Kang and
  • Jihwan Woo

28 February 2017

Generalized tonic-clonic seizures (GTCSs) can be underestimated and can also increase mortality rates. The monitoring devices used to detect GTCS events in daily life are very helpful for early intervention and precise estimation of seizure events. S...

(This article belongs to the Special Issue Sensing Technology for Healthcare System)
  • Article
  • Open Access
270 Views
35 Pages

24 September 2026

Target detection in complex backgrounds remains challenging because targets and backgrounds are often insufficiently separable in a single spectral or polarimetric feature space. In addition, conventional detectors usually have limited capability to...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
9 Citations
3,651 Views
19 Pages

A Spatial–Spectral Joint Attention Network for Change Detection in Multispectral Imagery

  • Wuxia Zhang,
  • Qinyu Zhang,
  • Shuo Liu,
  • Xiaoying Pan and
  • Xiaoqiang Lu

14 July 2022

Change detection determines and evaluates changes by comparing bi-temporal images, which is a challenging task in the remote-sensing field. To better exploit the high-level features, deep-learning-based change-detection methods have attracted researc...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
31 Citations
4,584 Views
19 Pages

A Classified Adversarial Network for Multi-Spectral Remote Sensing Image Change Detection

  • Yue Wu,
  • Zhuangfei Bai,
  • Qiguang Miao,
  • Wenping Ma,
  • Yuelei Yang and
  • Maoguo Gong

30 June 2020

Adversarial training has demonstrated advanced capabilities for generating image models. In this paper, we propose a deep neural network, named a classified adversarial network (CAN), for multi-spectral image change detection. This network is based o...

(This article belongs to the Special Issue Satellite Image Processing and Applications)
  • Feature Paper
  • Article
  • Open Access
33 Citations
10,500 Views
24 Pages

Onboard Spectral and Spatial Cloud Detection for Hyperspectral Remote Sensing Images

  • Haoyang Li,
  • Hong Zheng,
  • Chuanzhao Han,
  • Haibo Wang and
  • Min Miao

20 January 2018

The accurate onboard detection of clouds in hyperspectral images before lossless compression is beneficial. However, conventional onboard cloud detection methods are not applicable all the time, especially for shadowed clouds or darkened snow-covered...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
18 Citations
8,925 Views
21 Pages

Leaf Spectral Analysis for Detection and Differentiation of Three Major Rice Diseases in the Philippines

  • Jean Rochielle F. Mirandilla,
  • Megumi Yamashita,
  • Mitsunori Yoshimura and
  • Enrico C. Paringit

11 June 2023

Monitoring the plant’s health and early detection of disease are essential to facilitate effective management, decrease disease spread, and minimize yield loss. Spectroscopic techniques in remote sensing offer less laborious methods and high sp...

(This article belongs to the Special Issue Remote Sensing for Precision Farming and Crop Phenology)
  • Article
  • Open Access
27 Citations
5,692 Views
28 Pages

12 November 2020

Stripe noise is a common and unwelcome noise pattern in various thermal infrared (TIR) image data including conventional TIR images and remote sensing TIR spectral images. Most existing stripe noise removal (destriping) methods are often difficult to...

(This article belongs to the Special Issue Correction of Remotely Sensed Imagery)
  • Article
  • Open Access
3 Citations
1,172 Views
17 Pages

Quantitative Detection of Water Content of Winter Jujubes Based on Spectral Morphological Features

  • Yabei Di,
  • Huaping Luo,
  • Hongyang Liu,
  • Huaiyu Liu,
  • Lei Kang and
  • Yuesen Tong

24 February 2025

The spectral information extracted from hyperspectral images is characterized by redundancy and complexity, while the spectral morphological features extracted from the spectral information help to simplify the data and provide rich information about...

(This article belongs to the Section Artificial Intelligence and Digital Agriculture)
  • Article
  • Open Access
4 Citations
1,301 Views
16 Pages

Multi-Spectral and Single-Shot Wavefront Detection Technique Based on Neural Networks

  • Xunzheng Li,
  • Aoyang Wang,
  • Mao Fan,
  • Lianghong Yu and
  • Xiaoyan Liang

11 November 2025

Conventional wavefront sensors face challenges when detecting frequency-domain information. In this study, we developed a high-precision, and fast multi-spectral wavefront detection technique based on neural networks. Using an etalon and a diffractiv...

(This article belongs to the Section New Applications Enabled by Photonics Technologies and Systems)
  • Article
  • Open Access
15 Citations
5,895 Views
30 Pages

3 July 2020

Target detection in remote sensing imagery, mapping of sparsely distributed materials, has vital applications in defense security and surveillance, mineral exploration, agriculture, environmental monitoring, etc. The detection probability and the qua...

(This article belongs to the Special Issue Application of Multi-Sensor Fusion Technology in Target Detection and Recognition)
  • Article
  • Open Access
7 Citations
2,727 Views
22 Pages

25 June 2023

Non-Gaussian impulsive noise in marine environments strongly influences the detection of weak spectral lines. However, existing detection algorithms based on the Gaussian noise model are futile under non-Gaussian impulsive noise. Therefore, a deep-le...

(This article belongs to the Special Issue Advanced Array Signal Processing for Target Imaging and Detection)
  • Article
  • Open Access
55 Citations
8,952 Views
25 Pages

11 July 2018

Modern methods of detection and identification of structural damage direct the activities of scientific groups towards the improvement of diagnostic methods using for example the phenomenon of mechanical wave propagation. Damage detection methods tha...

  • Article
  • Open Access
36 Citations
4,452 Views
19 Pages

A Spectral-Spatial Features Integrated Network for Hyperspectral Detection of Marine Oil Spill

  • Bin Wang,
  • Qifan Shao,
  • Dongmei Song,
  • Zhongwei Li,
  • Yunhe Tang,
  • Changlong Yang and
  • Mingyue Wang

18 April 2021

Marine oil spills are one of the most serious problems of marine environmental pollution. Hyperspectral remote sensing has been proven to be an effective tool for monitoring marine oil spills. To make full use of spectral and spatial features, this s...

  • Article
  • Open Access
52 Citations
7,106 Views
21 Pages

26 November 2022

Large-area, artificial floating marine litter (FML) targets were deployed during a controlled field experiment and data acquisition campaign: the Plastic Litter Project 2021. A set of 22 Sentinel-2 images, along with UAS data and ancillary measuremen...

(This article belongs to the Special Issue Remote Sensing for Mapping and Monitoring Anthropogenic Debris)
  • Article
  • Open Access
1 Citations
3,090 Views
12 Pages

21 July 2022

The need for affordable low-power devices has led MEMS-based thermal emitters to become an interesting option for optical gas sensors. Since these emitters have a low thermal mass, they can be easily modulated and combined with a lock-in amplifier fo...

(This article belongs to the Section Optical Sensors)
  • Article
  • Open Access
1 Citations
846 Views
30 Pages

29 March 2026

Remote sensing (RS) object detection faces intrinsic challenges arising from the overhead imaging paradigm and the diversity of climatic conditions. In particular, atmospheric phenomena such as clouds and haze cause severe visual degradation, making...

(This article belongs to the Special Issue Advances in Remote Sensing Image Target Detection and Recognition)
  • Article
  • Open Access
7 Citations
3,628 Views
12 Pages

2 December 2023

Outlier detection is an essential research field in data mining, especially in the areas of network security, credit card fraud detection, industrial flaw detection, etc. The existing outlier detection algorithms, which can be divided into supervised...

(This article belongs to the Section Artificial Intelligence)
  • Article
  • Open Access
1,164 Views
21 Pages

26 April 2026

Under low-light conditions, visible-spectrum images are prone to detail loss and contrast degradation, which substantially limits object detection performance. Although infrared imagery can provide complementary cues, direct fusion often introduces n...

(This article belongs to the Section Optical Sensors)
  • Article
  • Open Access
6 Citations
4,986 Views
27 Pages

3 December 2023

To address the problem that traditional spectral clustering algorithms cannot obtain the complete structural information of networks, this paper proposes a spectral clustering community detection algorithm, PMIK-SC, based on the point-wise mutual inf...

(This article belongs to the Special Issue Community Detection and Clustering Complex Networks and Their Applications)
  • Article
  • Open Access
652 Views
23 Pages

Physics-Prior-Guided Feature Pyramid Network for Unified Multi-Angle Spectral–Polarimetric Cloud Detection

  • Shu Li,
  • Xingyuan Ji,
  • Xiaoxue Chu,
  • Song Ye,
  • Ziyang Zhang,
  • Yongyin Gan,
  • Xinqiang Wang and
  • Fangyuan Wang

12 April 2026

Accurate cloud detection remains a significant challenge due to the spectral ambiguity between clouds and bright or heterogeneous surfaces (e.g., snow, desert). While multi-angle and polarization data offer rich information, the discriminative power...

  • Article
  • Open Access
9 Citations
4,615 Views
19 Pages

Accurate Real-Time Live Face Detection Using Snapshot Spectral Imaging Method

  • Zhihai Wang,
  • Shuai Wang,
  • Weixing Yu,
  • Bo Gao,
  • Chenxi Li and
  • Tianxin Wang

5 February 2025

Traditional facial recognition is realized by facial recognition algorithms based on 2D or 3D digital images and has been well developed and has found wide applications in areas related to identification verification. In this work, we propose a novel...

(This article belongs to the Special Issue Advances in Optical Sensing, Instrumentation and Systems: 2nd Edition)
  • Article
  • Open Access
23 Citations
4,142 Views
15 Pages

Nowadays, pedestrian detection is widely used in fields such as driving assistance and video surveillance with the progression of technology. However, although the research of single-modal visible pedestrian detection has been very mature, it is stil...

(This article belongs to the Topic Machine and Deep Learning)
  • Article
  • Open Access
8 Citations
4,935 Views
10 Pages

6 July 2018

A spectral integration combined with a threshold method for the analysis of spectral scanning surface plasmon resonance (SPR) images can significantly increase signal recognition at low concentration of antibody solution. The 12-well SPR sensing plat...

(This article belongs to the Special Issue Label-free Optical Nanobiosensors)
  • Article
  • Open Access
1 Citations
862 Views
24 Pages

A Spectral Device for Rice Chlorophyll Content Detection with Background Classification Capability

  • Yanyu Chen,
  • Xiaochan Wang,
  • Xiaoyang Xing,
  • Sheng Xu,
  • Xiaolei Zhang,
  • Shengfeng Chen,
  • Yue Yin,
  • Dezhi Wang,
  • Rui Xi and
  • Xin Xu

13 January 2026

The aim of this study is to enhance the detection accuracy of rice chlorophyll content under complex backgrounds, optimize rice production management models, and improve the efficiency and quality of grain production. To achieve this, a spectral devi...

(This article belongs to the Section Precision and Digital Agriculture)
  • Review
  • Open Access
35 Citations
6,678 Views
19 Pages

5 June 2023

Traditional methods for detecting foodstuff hazards are time-consuming, inefficient, and destructive. Spectral imaging techniques have been proven to overcome these disadvantages in detecting foodstuff hazards. Compared with traditional methods, spec...

(This article belongs to the Section Food Analytical Methods)
  • Article
  • Open Access
53 Citations
2,006 Views
29 Pages

Local Sub-Block Contrast and Spatial–Spectral Gradient Feature Fusion for Hyperspectral Anomaly Detection

  • Dong Zhao,
  • Xingchen Xu,
  • Mingtao You,
  • Pattathal V. Arun,
  • Zhe Zhao,
  • Jiahong Ren,
  • Li Wu and
  • Huixin Zhou

18 February 2025

Most existing hyperspectral anomaly detection algorithms primarily rely on spatial information to identify anomalous targets. However, they often overlook the spatial–spectral gradient information inherent in hyperspectral images, which can lea...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
2 Citations
2,367 Views
20 Pages

Spectral Information Divergence-Driven Diffusion Networks for Hyperspectral Target Detection

  • Jinfu Gong,
  • Zhen Huang,
  • Zhengye Yang,
  • Xuezhuan Ding and
  • Fanming Li

8 April 2025

Hyperspectral Imagery (HSI) plays a crucial role in military and civilian target detection. However, HSI target detection remains highly challenging due to the interference caused by complex and diverse real-world scenarios. This paper proposes a Spe...

  • Article
  • Open Access
10 Citations
2,248 Views
12 Pages

In the research of fault arc detection technology, proper signal denoising can greatly improve the recognition ability of the arc fault detection algorithm. Therefore, this study proposes a current signal enhancement algorithm based on improved spect...

(This article belongs to the Section Circuit and Signal Processing)
  • Article
  • Open Access
32 Views
18 Pages

13 October 2026

Hyperspectral target detection identifies target pixels in complex backgrounds using a small number of known target priors; this task is complicated by target-sample scarcity, pseudo-sample contamination, and spectral similarity between targets and b...

(This article belongs to the Special Issue Research and Applications of Artificial Neural Network)
  • Article
  • Open Access
387 Views
21 Pages

Spectral-Centroid-Based Non-Coherent Detection for Chaos Shift Keying

  • Tingting Huang,
  • Shengmin Hong,
  • Jundong Chen and
  • Liangyi Kang

18 July 2026

Classical coherent chaos shift keying (CSK) provides certain physical-layer advantages by exploiting chaotic waveforms, but it relies on fragile chaos synchronization, which is difficult to maintain in multipath fading channels. To overcome this limi...

(This article belongs to the Section Electrical, Electronics and Communications Engineering)
  • Article
  • Open Access
16 Citations
4,959 Views
21 Pages

21 December 2022

Due to the limited penetration of visible bands, optical remote sensing images are inevitably contaminated by clouds. Therefore, cloud detection or cloud mask products for optical image processing is a very important step. Compared with conventional...

(This article belongs to the Special Issue Meteorological Remote Sensing Algorithm and Applications for Clouds and Precipitation)
  • Article
  • Open Access
14 Citations
3,979 Views
19 Pages

25 May 2022

Hyperspectral remote sensing image (HSI) include rich spectral information that can be very beneficial for change detection (CD) technology. Due to the existence of many mixed pixels, pixel-wise approaches can lead to considerable errors in the resul...

(This article belongs to the Special Issue Recent Advances in Hyperspectral Image Processing)
  • Article
  • Open Access
7 Citations
2,875 Views
19 Pages

29 June 2023

Anomaly detection is a crucial task for hyperspectral image processing. Most popular methods detect anomalies at the pixel level, while a few algorithms for anomaly detection only utilize subpixel level unmixing technology to extract features without...

(This article belongs to the Special Issue Remote Sensing and Machine Learning of Signal and Image Processing)
  • Article
  • Open Access
703 Views
20 Pages

7 December 2025

Change detection (CD) in high-resolution remote sensing imagery is vital for resource monitoring and disaster assessment but faces challenges such as spatiotemporal heterogeneity, spectral variability, and computational inefficiency. This paper propo...

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